Shiny rainbow scope

＜What you will need＞　*Also listed in the recipe

• ・Paper cup (brown) ×2
  ★Lights appear more beautiful with colored cups than with white ones!
  ★Make a hole in one of the two paper cups before use (any size and shape is fine).
• ・Spectroscopic sheet (available online, in large general stores, and home improvement stores.)
• ・Double-sided adhesive tape
• ・Adhesive tape
• ・Map pin (to punch small holes)

One-string guitar

＜What you will need＞　*Also listed in the recipe

• ・Rectangular wood bar (10mm × 30mm × 450mm) ×1
• ・Cardboard
• ・Musical scale (please download and print in A3 size)
• ・Two types of bamboo strips – Thick: diameter = 3mm ×2; Thin: diameter = 1.8mm ×10
• ・Nylon string: No. 10
• ・Screw eye ×1
• ・Toothpick ×1
• ・Paper
• ・Glue
• ・Ruler
• ・Adhesive tape
• ・Mechanical pencil
• ・Scissors

Headphones made from PET bottle and milk carton

＜What you will need＞

• ・PET bottle ×2
• ・Polyvinyl formal enameled copper wire (thickness: 0.2 mm, length: 20 m) ×2
  *Enameled wire or polyurethane copper wire can also be used instead of polyvinyl formal enameled copper wire.
• ・Magnet (cylindrical with 20-mm diameter) ×2
• ・Audio connection cable (stereo mini plug at one end) x1
• ・Wool yarn
• ・Cushion tape (sealing tape for windows, etc.)
• ・Paper template (can be downloaded from website)
• ・Box cutter
• ・Cutter mat (anything that protects the desk, etc. from being damaged is fine)
• ・Scissors
• ・Cotton work gloves
• ・Needle-nosed pliers
• ・Felt-tip pen or marker
• ・Double-sided adhesive tape
• ・Sandpaper
• ・Adhesive tape
• ・Rubber band